Given an RSA implementation that uses Montgomery multiplications and CIOS exp algo, but NOT CRT.
Given a decryption1 oracle that takes chosen cipher text and responds the plain text and the time it ...

I have been reading about “Timing Attacks on RSA: Revealing Your Secrets through the Fourth Dimension” by Wing H. Wong. I was wondering if this attack is feasible while signing with RSA and, if yes, ...

This question is inspired by this recent one, which raises a point that need to be made quantitative to be meaningfully discussed. I chose an unusual approach: a new question worded as homework that ...

So far I have researched on timing attack on RSA, We all know the ransomware named Cryptolocker it uses RSA 2048 bit encryption. Now is it possible to break the encryption using timing attack. I have ...

Are there any known timing attacks (both practical and theoretical) on any implementations of the following?
ECDSA (I'm aware of this one - are there any applicable to prime fields?),
ECDHE (again, ...

I'm just interested in cryptography, so please don't expect me to be an expert. ;) I recently read about AES cache timing attacks and found it very interesting. I read the article Cache-timing attacks ...

I have a question about attacks on the
implementation of cryptographic code that are enabled by compilation and compiler-optimisations. I am aware of this. Would
anyone be able to point me to other ...

There are several known methods for implementing AES in constant time using SIMD operations, mostly based around fast byte shuffling (for instance Hamburg and Kasper/Schwabe). Are there any similar ...